Question

observe a figura r//s//t. Calcule o valor de x de acordo com a Teorema de Tales.​

Answer 1

2x+2/6x=2x+4/2x+12
12x^2+24x=4x^2+24x+4x+24
8x^2-4x-24
2^2-x-6=0
Delta=1-4.2.(-6)
Delta=49
X=1+7/2=4
X2=1-7/2=-3

X=4